DocumentCode :
1985032
Title :
Resolution analysis of the T-class time-frequency distributions
Author :
Rankine, L. ; Mesbah, M. ; Boashash, B.
Author_Institution :
R. Brisbane & Women´´s Hosp., Perinatal Res. Centre, Univ. of Queensland, Herston, QLD
fYear :
2007
fDate :
12-15 Feb. 2007
Firstpage :
1
Lastpage :
4
Abstract :
The T-class of time-frequency distributions (TFDs) is a newly proposed subclass of the general quadratic TFD class. The TFDs of this subclass are characterized by their time-lag kernels which are functions of time only. In this paper, we report the results of our investigation related to the time and frequency resolution of the T-class TFDs. It is shown, analytically, for the case of a linear chirp, that the frequency resolution is a function of both the smoothing parameter of the TFD kernel and the rate of change in instantaneous frequency. The results are then illustrated with a number of synthetic examples.
Keywords :
signal resolution; smoothing methods; statistical distributions; time-frequency analysis; T-class time-frequency distributions; linear chirp; signal resolution analysis; smoothing parameter; time-lag kernels; Australia; Chirp; Fourier transforms; Frequency modulation; Hospitals; Kernel; Signal analysis; Signal resolution; Smoothing methods; Time frequency analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-0778-1
Electronic_ISBN :
978-1-4244-1779-8
Type :
conf
DOI :
10.1109/ISSPA.2007.4555327
Filename :
4555327
Link To Document :
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